CN214747024U - Heat accumulating type agricultural product heat pump drying device - Google Patents

Abstract

The utility model discloses a heat accumulation formula agricultural product heat pump drying device relates to agricultural product processing technology field, including heat pump body, casing and bottom plate, the heat pump body is installed to one side on bottom plate top, the vertical casing of installing in bottom plate top of heat pump body one side, the inside bottom of casing is provided with the collection box, the inside lower extreme of casing on collection box top is installed and is arranged the material disc, and equidistant the installation in the inside both sides of casing has the fixed slot, the inside sliding connection of fixed slot has the slide, and the casing internally mounted of slide one side has the board of placing, the one end of placing the inboard has seted up the spacing groove, the intermediate position department on casing top installs servo motor. The utility model discloses a set up the phase change heat accumulator, the heat that absorbs or emit when utilizing the inside heat storage material of phase change heat accumulator to take place the phase transition realizes the storage and the release of energy, avoids the inside thermal loss of dry back casing.

Description

Heat accumulating type agricultural product heat pump drying device

Technical Field

The utility model relates to an agricultural product processing technology field specifically is a heat accumulation formula agricultural product heat pump drying device.

Background

As a big agricultural country, China has various agricultural and sideline products, and for the convenience of storage, sale, production and manufacture, the agricultural and sideline products are usually dried, wherein heat pump drying is widely applied to the drying of the agricultural and sideline products due to the excellent characteristics of high efficiency, energy conservation and the like, but the existing agricultural product heat pump drying device has certain defects.

Through search, Chinese patent No. CN209926744U, publication No. 2020, 01, 10 discloses a heat pump drying device, which "comprises a box body 1 and a heat pump component 2" is proposed herein. Wherein, be provided with in the box 1 and be used for placing the drying zone of treating dry article, heat pump assembly 2 sets up in box 1, be located outside the drying zone, circulation air is flow to the drying zone after being dehumidified and heated by heat pump assembly 2, the air outlet in drying zone is linked together "should use novel rational in infrastructure," can not carry out drying process to agricultural and sideline products by weather factor, but can not carry out the heat accumulation to the inside heat after the drying, cause this part heat energy extravagant, in view of this, to the above-mentioned problem, deep research, it produces to tunnel the present case.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat accumulation formula agricultural product heat pump drying device to the unable heat accumulation that provides in solving above-mentioned background art causes the extravagant problem of the energy.

In order to achieve the above object, the utility model provides a following technical scheme: a heat accumulating type agricultural product heat pump drying device comprises a heat pump body, a shell, a bottom plate, a leveling structure for improving the drying efficiency of agricultural products, a recovery structure for reducing the content of impurities in the agricultural products and a heat accumulating mechanism for reducing energy loss;

the heat pump body is arranged on one side of the top end of the bottom plate, the PLC is arranged at the upper end of one side of the heat pump body, the shell is vertically arranged at the top end of the bottom plate on one side of the heat pump body, the lower end of one side of the shell is communicated with the lower end of one side of the heat pump body through a guide pipe, the top end of one side of the shell is communicated with the upper end of one side of the heat pump body through a guide pipe, and the heat storage mechanism is arranged at the upper end of one side, away from the heat pump body, of the shell;

a recycling box is arranged at the bottom end inside the shell, and a recycling structure is arranged inside the recycling box;

a discharge disc is mounted at the lower end of the inside of the shell at the top end of the recovery box, fixing grooves are mounted on two sides of the inside of the shell at equal intervals, a sliding plate is connected to the inside of each fixing groove in a sliding mode, a placing plate is mounted inside the shell on one side of each sliding plate, a limiting groove is formed in one end of the inside of each placing plate, and a leveling structure is arranged inside the shell on one end of each placing plate;

the middle position department on casing top installs servo motor, and the servo motor output is vertical to be installed through the pivot and is extended to the inside bull stick of casing.

Preferably, heat accumulation mechanism includes the drying cabinet, the drying cabinet is installed in the upper end that heat pump body one side was kept away from to the casing, and the both ends of the inside bottom of drying cabinet install negative-pressure air fan, the drying plate is installed to the inside upper end and the lower extreme of drying cabinet, and installs phase change heat accumulator in casing one side of drying cabinet below, the both ends of phase change heat accumulator top one side are passed through pipe and the inside bottom one side intercommunication of drying cabinet, and the both ends of phase change heat accumulator bottom one side are passed through pipe and the inside one side lower extreme intercommunication of casing.

Preferably, dial flat structure including dial flat board, fixture block, card hole, baffle, cavity, slide bar, dial flat brush, locking bolt and movable block, the slide bar is equidistant to be installed in the upper end of bull stick both sides, and the sliding surface of slide bar is connected with the movable block, the one end of movable block is provided with locking bolt, and the movable block keeps away from one side of bull stick and transversely installs and dial the flat board, dial one side of flat board bottom and install and dial flat brush, place one side of the inside one end of board and seted up the cavity, and the inside sliding connection of cavity has the baffle that extends to the spacing inslot portion, the fixture block is installed at the both ends of baffle one side, and place the inside one end opposite side of board and seted up the card hole with fixture block matched with.

Preferably, the area of the cross section of the side, far away from the fixture block, of the baffle is larger than the area of the cross section of the side, close to the fixture block, of the cavity, and the length of the baffle is smaller than the length of the inside of the cavity.

Preferably, the recovery structure includes swash plate, filter box case, row's material circular slot, slider, row's cinder notch and spout, arrange the top that the material circular slot annular was seted up in the collection box inside, and arrange the inside top of collection box of material circular slot both sides and seted up the spout, the inside sliding connection of spout has the slider, and the collection box internally mounted of slider bottom has filter box case, the swash plate is installed to the inside bottom of collection box, and the row's cinder notch has been seted up at the casing bottom both ends of swash plate one side.

Preferably, the slide block and the chute are T-shaped, and two sides of the top end of the filter screen box form a sliding structure through the slide block and the chute.

Preferably, the limiting groove is U-shaped, and the width of the limiting groove is equal to the diameter of the cross section of the rotating rod.

Compared with the prior art, the utility model provides a pair of heat accumulation formula agricultural product heat pump drying device has following beneficial effect:

1. the utility model provides a phase change heat accumulator, a negative pressure fan and a drying box, which utilizes the work of the negative pressure fan to lead the interior of the drying box to generate negative pressure, then the heat in the dried shell is sucked into the drying box through the guide pipe, the hot air is dried through the drying plate, the influence of a small amount of moisture on the normal operation of subsequent equipment is avoided, then the hot dry air is conveyed into the phase change heat accumulator through the guide pipe, the heat is absorbed when the phase change occurs by the heat accumulation material in the phase change heat accumulator, the energy accumulation is realized, and then the air is conveyed into the shell through the guide pipe, meanwhile, when the air is dried again, cold air in the shell is firstly sucked into the phase change heat accumulator to release heat and is conveyed to the interior of the shell along with the air, the heat in the dried shell can be recycled, so that the waste of energy is avoided, and the problem of heat energy waste is solved;

2. the utility model provides a dial flat structure, utilize the slip of baffle, make the baffle slide, go into inside the card hole until the fixture block card, realize the spacing that the baffle adjusted, and then plug up the spacing groove, avoid agricultural product to drop through the spacing groove, then make the movable block slide to suitable position after on the slide bar surface from top to bottom, tighten the locking bolt again, later place agricultural product on the negative-pressure air blower surface, realize that follow-up bull stick rotates and drives dial flat board and rotate, and then make dial flat brush rotate, stir agricultural product, avoid piling up together, reduce the drying effect, thereby make the agricultural product dry more evenly, and efficiency is higher, make the smooth going on of agricultural product drying production, thereby solved the problem that drying efficiency is low;

3. the utility model provides a recycling box, a recycling structure and a discharging disc, when the agricultural products are stirred by the rotation of a stirring brush, impurities or fragments of agricultural products can be swept, and the agricultural products can fall down through the holes on the surface of the placing plate and then fall into the filter screen box through the discharge circular groove, meanwhile, the fragments of the agricultural products are isolated by using the filter net cage, so that the small impurities fall onto the surface of the inclined plate and slide to one side of the slag discharging groove as much as possible by the inclined plate, after the drying is finished, the filter screen box is taken out and the fragments of the agricultural products are treated in a centralized way, and the impurities on the surface of the inclined plate are manually swept, so that the impurities and the fragments are screened by discharging the waste slag through the slag discharging groove, the adverse effect of screening the impurities and the fragments on the whole quality of the agricultural products is avoided, meanwhile, the broken agricultural products can be recycled, so that the problem that impurities and broken pieces cannot be screened is solved.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic side view of the cross-sectional structure of the present invention;

fig. 3 is a schematic top view of the cross-sectional structure of the present invention;

FIG. 4 is a schematic view of a partial top-view cross-sectional structure of the placement board of the present invention;

fig. 5 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.

In the figure: 1. a servo motor; 2. a leveling structure; 201. pulling a flat plate; 202. a clamping block; 203. a clamping hole; 204. a baffle plate; 205. a cavity; 206. a slide bar; 207. leveling; 208. a locking bolt; 209. a movable block; 3. fixing grooves; 4. a heat pump body; 5. a PLC controller; 6. a housing; 7. a base plate; 8. a recycling bin; 9. a recovery structure; 901. a sloping plate; 902. a filter screen box; 903. a round discharge groove; 904. a slider; 905. a slag discharge groove; 906. a chute; 10. a discharge disc; 11. a slide plate; 12. a phase change heat accumulator; 13. placing the plate; 14. a negative pressure fan; 15. drying the plate; 16. a drying oven; 17. a rotating rod; 18. a limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-5, a heat accumulating type agricultural product heat pump drying device comprises a heat pump body 4, a shell 6 and a bottom plate 7, and further comprises a leveling structure 2 for improving the agricultural product drying efficiency, a recovery structure 9 for reducing the impurity content in the agricultural product and a heat accumulating mechanism for reducing the energy loss;

the heat pump body 4 is installed on one side of the top end of the bottom plate 7, the PLC 5 is installed at the upper end of one side of the heat pump body 4, the type of the PLC 5 can be FX3SA-10MT-CM, the shell 6 is vertically installed at the top end of the bottom plate 7 on one side of the heat pump body 4, the lower end of one side of the shell 6 is communicated with the lower end of one side of the heat pump body 4 through a guide pipe, the top end of one side of the shell 6 is communicated with the upper end of one side of the heat pump body 4 through a guide pipe, and the heat storage mechanism is arranged at the upper end of one side, far away from the heat pump body 4, of the shell 6;

a recycling tank 8 is arranged at the bottom end inside the shell 6, and a recycling structure 9 is arranged inside the recycling tank 8;

a discharge disc 10 is mounted at the lower end of the inside of the shell 6 at the top end of the recycling box 8, fixing grooves 3 are mounted on two sides of the inside of the shell 6 at equal intervals, sliding plates 11 are connected inside the fixing grooves 3 in a sliding mode, a placing plate 13 is mounted inside the shell 6 on one side of each sliding plate 11, a limiting groove 18 is formed in one end of the inside of each placing plate 13, and the leveling structure 2 is arranged inside the shell 6 on one end of each placing plate 13;

a servo motor 1 is arranged in the middle of the top end of the shell 6, the type of the servo motor 1 can be F-3420-1, and a rotating rod 17 extending into the shell 6 is vertically arranged at the output end of the servo motor 1 through a rotating shaft;

referring to fig. 1-5, the heat accumulating type agricultural product heat pump drying device further comprises a heat accumulating mechanism, the heat accumulating mechanism comprises a drying box 16, the drying box 16 is installed at the upper end of one side, away from the heat pump body 4, of the shell 6, the two ends of the bottom end inside the drying box 16 are provided with negative pressure fans 14, the type of the negative pressure fans 14 can be HTF-I-3, the upper end and the lower end inside the drying box 16 are provided with drying plates 15, one side of the shell 6 below the drying box 16 is provided with a phase change heat accumulator 12, the two ends of one side of the top end of the phase change heat accumulator 12 are communicated with one side of the bottom end inside the drying box 16 through a guide pipe, and the two ends of one side of the bottom end of the phase change heat accumulator 12 are communicated with the lower end of one side inside the shell 6 through a guide pipe;

the limiting groove 18 is U-shaped, and the width of the limiting groove 18 is equal to the diameter of the cross section of the rotating rod 17;

specifically, as shown in fig. 1, fig. 2 and fig. 3, after drying is completed, negative pressure is generated inside the drying box 16 by starting the negative pressure fan 14, and then the heat inside the dried casing 6 is sucked into the drying box 16 through a conduit, and the hot air is dried by the drying plate 15, and then the hot dry hot air is conveyed into the phase change heat accumulator 12 through a conduit, and is absorbed by the heat storage material inside the phase change heat accumulator to realize energy storage, and then the air is conveyed into the casing 6 through a conduit, and meanwhile, when drying again, cold air inside the casing 6 is sucked into the phase change heat accumulator 12 to release the heat and is conveyed into the casing 6 along with the air, so that the heat inside the dried casing 6 can be recycled, and energy waste is avoided.

Example 2: the leveling structure 2 comprises a leveling plate 201, fixture blocks 202, fixture holes 203, a baffle 204, a cavity 205, a sliding rod 206, a leveling brush 207, a locking bolt 208 and a movable block 209, wherein the sliding rod 206 is installed at the upper ends of the two sides of a rotating rod 17 at equal intervals, the surface of the sliding rod 206 is connected with the movable block 209 in a sliding mode, one end of the movable block 209 is provided with the locking bolt 208, the leveling plate 201 is transversely installed on one side, away from the rotating rod 17, of the movable block 209, the leveling brush 207 is installed on one side of the bottom end of the leveling plate 201, the cavity 205 is formed in one side of one end inside a placing plate 13, the baffle 204 extending into a limiting groove 18 is connected in the cavity 205 in a sliding mode, the fixture blocks 202 are installed at the two ends of one side of the baffle 204, and the fixture holes 203 matched with the fixture blocks 202 are formed in the other side of one end inside the placing plate 13;

the cross section area of the side, far away from the fixture 202, of the baffle 204 is larger than the cross section area of the side, close to the fixture 202, of the cavity 205, and the length of the baffle 204 is smaller than the length of the interior of the cavity 205;

specifically, as shown in fig. 1, fig. 4 and fig. 5, utilize the slip of baffle 204, make baffle 204 slide, inside until fixture block 202 card goes into card hole 203, realize the spacing that baffle 204 adjusted, and then block up spacing groove 18, avoid agricultural product to drop through spacing groove 18, then make movable block 209 slide to suitable position after the slide bar 206 surface from top to bottom, tighten locking bolt 208 again, later place agricultural product in negative-pressure air fan 14 surface, realize that follow-up bull stick 17 rotates and drives group flat board 201 and rotate, and then make group flat brush 207 rotate, stir agricultural product, avoid piling up together, reduce drying effect.

Example 3: the recycling structure 9 comprises an inclined plate 901, a filter screen box 902, a round discharging groove 903, a sliding block 904, a slag discharging groove 905 and a sliding groove 906, wherein the round discharging groove 903 is annularly formed in the top end of the inside of the recycling box 8, the sliding grooves 906 are formed in the top end of the inside of the recycling box 8 on two sides of the round discharging groove 903, the sliding block 904 is connected to the inside of the sliding groove 906 in a sliding mode, the filter screen box 902 is installed inside the recycling box 8 at the bottom end of the sliding block 904, the inclined plate 901 is installed at the bottom end of the inside of the recycling box 8, and the slag discharging groove 905 is formed in two ends of the bottom end of the shell 6 on one side of the inclined plate 901;

the sliding blocks 904 and the sliding grooves 906 are T-shaped, and two sides of the top end of the filter screen box 902 form a sliding structure through the sliding blocks 904 and the sliding grooves 906;

specifically, as shown in fig. 1 and 2, when dialling flat brush 207 and rotating and stir agricultural product, can make impurity or agricultural product fragment in the agricultural product sweep, make it drop down through the hole of placing board 13 surface, the rethread is arranged material circular slot 903 and is dropped to inside the filter screen case 902, utilize filter screen case 902 to keep apart the agricultural product fragment simultaneously, make little impurity drop to the swash plate 901 surface, after the drying is accomplished, take out filter screen case 902 and the centralized processing agricultural product fragment, and the manual work sweeps the impurity on swash plate 901 surface, make and discharge through arranging slag chute 905, realize impurity and the screening of fragment, avoid impurity and the screening of fragment to the adverse effect that the whole quality of agricultural product caused.

The output end of the PLC 5 is electrically connected with the input ends of the servo motor 1 and the negative pressure fan 14 through leads.

The working principle is as follows: when the device is used, firstly, the placing plate 13 is slid into the fixing groove 3, so that the placing plate 13 moves towards the inside of the shell 6, and meanwhile, the limiting groove 18 is clamped on the steering rod 17;

the first innovation point implementation step:

the first step is as follows: then, the baffle 204 is pulled, so that the baffle 204 slides in the cavity 205 until the fixture block 202 is clamped in the fixture hole 203, the regulation and the limiting of the baffle 204 are realized, the limiting groove 18 is further blocked, and the agricultural products are prevented from falling through the limiting groove 18;

the second step is that: then, the locking bolt 208 is loosened, the movable block 209 is made to slide up and down to a proper position on the surface of the sliding rod 206, the locking bolt 208 is tightened, and the agricultural products are placed on the surface of the negative pressure fan 14;

the third step: thereby realize that follow-up bull stick 17 rotates to drive and dials dull and stereotyped 201 and rotates, and then make and dial flat brush 207 and rotate, stir agricultural product, avoid piling up together, reduce drying effect.

Through the work of the heat pump body 4, hot air is conveyed to the lower end inside the shell 6 through the guide pipe, the agricultural products are dried by utilizing hot air transpiration, then, low-temperature and high-humidity gas is conveyed to the inside of the heat pump body 4 again through the guide pipe, and is conveyed to the inside of the shell 6 again after being dehumidified and heated inside the heat pump body 4, so that the drying cycle is realized;

the implementation step of the second innovation point:

the first step is as follows: meanwhile, when the poking flat brush 207 rotates to poke the agricultural products, impurities or fragments of the agricultural products can be swept, and the agricultural products can fall down through the holes in the surface of the placing plate 13;

the second step is that: then, the agricultural product falls into the filter screen box 902 through the discharge circular groove 903 under the guidance of the discharge disc 10, and meanwhile, the agricultural product fragments are isolated by the filter screen box 902, so that small impurities fall onto the surface of the inclined plate 901 and slide to one side of the slag discharge groove 905 as much as possible by the inclined plate 901;

the third step: after drying, the sliding of the sliding block 904 inside the slag discharging groove 905 can be utilized to take out the filter net cage 902 and intensively process the fragments of agricultural products, and the impurities on the surface of the inclined plate 901 are manually swept, so that the impurities and the fragments are discharged through the slag discharging groove 905, and the screening of the impurities and the fragments is realized.

The third innovation point implementation step:

the first step is as follows: after drying is completed, the negative pressure fan 14 is started to generate negative pressure inside the drying box 16, and then hot air inside the shell 6 is sucked into the drying box 16 through the guide pipe;

the second step is that: the hot air is dried by the drying plate 15, then the hot dry hot air is conveyed to the interior of the phase change heat accumulator 12 through a conduit, the heat is absorbed by a heat storage material in the phase change heat accumulator 12 when the phase change occurs, and then the air is conveyed to the interior of the shell 6 through the conduit, so that the heat in the shell 6 is completely stored in the phase change heat accumulator 12;

the third step: when drying again, firstly, cold air in the shell 6 is sucked into the phase change heat accumulator 12, and is conveyed to the shell 6 along with the air, so that heat is released, and the purpose of heat accumulation is achieved.

When the heat accumulation is completed, the placing plate 13 can be taken out from the inside of the housing 6 by the sliding of the sliding plate 11 inside the fixing groove 3, and the dried agricultural products can be taken out.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (7)

1. The utility model provides a heat accumulation formula agricultural product heat pump drying device, includes heat pump body, casing and bottom plate, its characterized in that: the agricultural product drying device also comprises a leveling structure for improving the agricultural product drying efficiency, a recovery structure for reducing the impurity content in the agricultural products and a heat storage mechanism for reducing the energy loss;

the heat pump body is arranged on one side of the top end of the bottom plate, the PLC is arranged at the upper end of one side of the heat pump body, the shell is vertically arranged at the top end of the bottom plate on one side of the heat pump body, the lower end of one side of the shell is communicated with the lower end of one side of the heat pump body through a guide pipe, the top end of one side of the shell is communicated with the upper end of one side of the heat pump body through a guide pipe, and the heat storage mechanism is arranged at the upper end of one side, away from the heat pump body, of the shell;

a recycling box is arranged at the bottom end inside the shell, and a recycling structure is arranged inside the recycling box;

a discharge disc is mounted at the lower end of the inside of the shell at the top end of the recovery box, fixing grooves are mounted on two sides of the inside of the shell at equal intervals, a sliding plate is connected to the inside of each fixing groove in a sliding mode, a placing plate is mounted inside the shell on one side of each sliding plate, a limiting groove is formed in one end of the inside of each placing plate, and a leveling structure is arranged inside the shell on one end of each placing plate;

the middle position department on casing top installs servo motor, and the servo motor output is vertical to be installed through the pivot and is extended to the inside bull stick of casing.

2. A regenerative agricultural heat pump drying apparatus as claimed in claim 1, wherein: the heat accumulation mechanism comprises a drying box, the drying box is installed at the upper end of one side of the shell far away from the heat pump body, negative pressure fans are installed at the two ends of the bottom inside the drying box, a drying plate is installed at the upper end and the lower end inside the drying box, a phase change heat accumulator is installed on one side of the shell below the drying box, the two ends of one side of the top end of the phase change heat accumulator are communicated with one side of the bottom inside the drying box through a guide pipe, and the two ends of one side of the bottom end of the phase change heat accumulator are communicated with the lower end of one side inside the shell through a guide pipe.

3. A regenerative agricultural heat pump drying apparatus as claimed in claim 1, wherein: dial flat structure including dialling flat board, fixture block, card hole, baffle, cavity, slide bar, dialling flat brush, locking bolt and movable block, the slide bar is equidistant to be installed in the upper end of bull stick both sides, and the sliding surface of slide bar is connected with the movable block, the one end of movable block is provided with locking bolt, and the movable block keeps away from one side of bull stick and transversely installs and dial the flat board, dial one side of dull and stereotyped bottom and install and dial flat brush, place one side of the inside one end of board and seted up the cavity, and the inside sliding connection of cavity has the baffle that extends to the spacing inslot portion, the fixture block is installed at the both ends of baffle one side, and places the inside one end opposite side of board and seted up the card hole with fixture block matched with.

4. A regenerative agricultural heat pump drying apparatus as claimed in claim 3, wherein: the area of the cross section of one side, far away from the fixture block, of the baffle is larger than the area of the cross section of one side, close to the fixture block, of the cavity, and the length of the baffle is smaller than the length of the inside of the cavity.

5. A regenerative agricultural heat pump drying apparatus as claimed in claim 1, wherein: the recycling structure comprises an inclined plate, a filter box, a discharging circular groove, a sliding block, a slag discharging groove and a sliding groove, the discharging circular groove is annularly arranged at the top end inside the recycling box, the sliding groove is formed in the top end inside the recycling box at two sides of the discharging circular groove, the sliding groove is formed in the sliding groove, the sliding block is connected inside the sliding groove, the filter box is arranged inside the recycling box at the bottom end of the sliding block, the inclined plate is arranged at the bottom end inside the recycling box, and the slag discharging groove is formed in two ends of the bottom end of the shell on one side of the inclined plate.

6. A regenerative agricultural heat pump drying apparatus as claimed in claim 5, further comprising: the shapes of the sliding block and the sliding groove are T-shaped, and two sides of the top end of the filter screen box form a sliding structure through the sliding block and the sliding groove.

7. A regenerative agricultural heat pump drying apparatus as claimed in claim 1, wherein: the shape of spacing groove is the U type, and the width of spacing groove equals the diameter of bull stick cross section.

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